Halter tops are classic pieces for summer wear. They leave the shoulders and back area free for air circulation and create a flirtatious, comfortable summer style. Halter top straps should be made from a soft, sturdy fabric such as a non-stretch cotton and wide enough to hold the weight of the shirt or dress. A simple, two-piece strap is all you need to create a halter top out of your favourite tube top or strapless dress.
Lay the 1/2 yard of fabric on a flat, even surface. Cut two rectangular strips of fabric measuring 22 inches by 2 inches, using a pair of scissors and a measuring tape.
Fold each of the strips of fabric in half lengthwise, with the right sides facing. Pin along the raw edges about 5/8 inch inside the edges, ensuring you pin together the two layers of fabric.
Use a sewing machine to sew along the length of the pinned and folded fabric rectangles. Leave both of the short ends of the strap open so you can turn the sewn strap inside-out in the next step.
Attach a large safety pin to the short end of one of the straps. Push the safety pin upward so the safety pin begins to push the end of the strap into the fabric tube. Keep pushing the safety pin along the inside of the shaft of the sewn strap, pulling on the fabric until the pin reaches the opposite end of the tube. Release the safety pin from the strap, and repeat with the other halter strap. Both straps now should be right-side-out.
Hold onto the short, unfinished end of one strap. Fold about 1/2 inch of fabric from the end of the strap into the tube of fabric, so the raw edges are hidden from view. Pin in place and sew the new folds in place using a sewing machine about 3/8 inch from the edge. Repeat on all three of the remaining open ends on both halter straps.
Pin one end of one halter strap onto the inside-front of the dress or top. The strap normally should be attached about 2 to 3 inches to the inside of where the garment hits the armpit. Repeat with the second strap. Leave the final two ends of the straps free to be tied and adjusted to fit the garment comfortably. Tie a double knot or bow at the back of your neck when you find the correct length for comfort.
Make each strap longer in step 1 if you are unsure of how much extra length you will need for tying or adjusting the garment.